SOMFY J4 WT User manual

www.somfy.com
J4 WT Protect Drive
Ref. 5134391A
Full installation guide

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J4 WT Protect Drive
Full installation guide
Copyright © 2017 SOMFY ACTIVITES SA. All rights reserved.
Non contractual images.
INTRODUCTION
This guide is for use when installing J4WT Protect drives. The drive is
designed for the electrical control of Exterior Venetian Blinds (EVB).
This guide supplements the short installation guide supplied with
the drive.
All guides are available online at www.somfy.info.

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J4 WT Protect Drive
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SAFETY
SPHERE OF APPLICATION
J4 drives are designed to drive all types of Exterior Venetian Blind (EVB).
The installer, a home motorisation and automation professional, must
ensure that once the driven product is installed, it respects the current
standards in the country of installation, notably standard EN 13561
relative to exterior blinds.
LIABILITY
Before operation, please read this guide carefully. In addition to
the instructions provided in this guide, please also comply with the
instructions set out in the enclosed Safety instructions document.
The drive must be installed by a home motorisation and automation
professional, in accordance with Somfy’s instructions and the applicable
regulations in the country of installation.
Any operation of the drive outside the sphere of application described
above is prohibited. Such operation shall exclude Somfy from all liability
and invalidate the Somfy warranty, as will any failure to comply with
the instructions given herein and in the enclosed Safety instructions
document.
Aer installing the drive, the installer must inform his customers of
the operating and maintenance conditions for the drive and must pass
the operating and maintenance instructions on to them, as well as the
Safety instructions document. Any Aer-Sales Service operation on
the drive requires intervention by a home motorisation and automation
professional.
Should any doubt arise during installation of the drive or for additional
information, consult a Somfy contact or visit www.somfy.com.

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J4 WT Protect Drive
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GENERAL SAFETY INSTRUCTIONS
The installation must be protected from all unauthorised use.
Comply with the assembly and operating guides, in particular the safety
instructions supplied by the manufacturer of the device to be used.
To remove the drive power cable, please use the J4 cable removal tool
supplied, ref: 9017811.
The drive, torque and operating time must be adjusted in relation to the
whole installation.
Moving parts of the drive must be protected if operating less than
2.50 m from the ground or other level surface.
Disconnect all connected cables from the power supply before working
on the installation.
SAFETY INSTRUCTIONS FOR WIRING
Cables routed through a metal wall must be protected and insulated
by sleeving or sheathing.
Secure the cables to prevent any contact with moving parts.
If the drive is used outdoors and if the power supply cable is of the
H05-VVF type, run the cable in a UV-resistant duct, e.g. trunking.
Leave the drive power supply cable accessible: it must be easily
replaceable.
Always make a loop in the power cable to prevent water from
entering the drive!
SOMFY ACTIVITES SA, F-74300 CLUSES as manufacturer hereby declares that
the drive covered by these instructions and used as intended according to these
instructions, is in compliance with the essential requirements of the applicable
European Directives and in particular of the Machinery Directive 2006/42/EC
and EMC Directive 2014/30/EU.
The full text of the EU Declaration of Conformity is available at
www.somfy.com/ce. Antoine Crézé, Approval manager, acting on behalf of the
Business Director, Cluses, 06/2017.

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SPECIFIC INSTRUCTIONS
Do not connect the drive to an isolating transformer.
Do not use mains disconnection devices in conjunction with a drive.
Do not use more than one switch per drive.
Use only mechanical or electro-mechanical switches (e.g.: relays) to
control drives. The relay contacts must not be bypassed by capacitors.
In user mode, do not use electric switches that allow the
▲
and
▼
buttons
to be pressed simultaneously.
The drive must not be driven by a solid-state relay or triac relay.
Always refer to the control system instructions for proper wiring.
For control systems using an “automatic operating time recognition
procedure”, follow the recommendations made by the controller
manufacturer: The controller neutral must be connected to neutral of
each drive.
Continuous orders of at least 200ms must be sent to the drive to ensure
proper execution.
There must be an interval of at least 500 ms between “Down” and “Up”
orders.
The drive can be wired in parallel. In this case, take into account the
maximum load of the switch/controller used (peak starting current:
9 A for 3 ms).
The phases and neutrals of each drive must be connected together
respectively, as shown below:
M
M MM
Down
Up
Neutral
Earth

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1. General 7
1.1. Benefits of the J4 WT Protect 7
1.2. Compatible exterior Venetian blinds 8
2. The drive and its three new functions 9
2.1. Obstacle detection & stress relief 9
2.2. Frost detection & stress relief 9
2.3. Automatic upper end limit adjustment 9
3. Technical details 10
3.1. Drive components 10
3.2. Mushroom 11
3.3. Description of an application 12
3.4. Technical data 13
4. Installation in an EVB 16
4.1. Cutting the head rail 16
4.2. Assembly in a head rail 16
4.3. Installing the drive 23
5. Use and maintenance 26
5.1. Raising the EVB 26
5.2. Lowering the EVB 26
6. Tips & recommendations 27
6.1. Resetting the drive 27
6.2. RTS and io compatibility 27
6.3. Troubleshooting table 28
6.4. FAQ 29
CONTENTS
[ Interactive sections: click on any title to go straight to that section. ]

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The new version of the J4 WT Protect drive forms part of the new,
improved SOMFY wired electronic range, with new components and
a new design.
1. GENERAL
1.1. BENEFITS OF THE J4 WT PROTECT
Customised natural
light management
Controlled heat exchange
Complete sun protection
for large windows
Guaranteed privacy -
see without being seen
Architectural element of the
façade in its own right
Frost and obstacle
detection
Automatic upper end
limit adjustment function
Breakage-resistant function
Application safety,
long life and protection
EVB benefits
Compatible with all types of EVB
Somfy +points

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1.2. COMPATIBLE EXTERIOR VENETIAN BLINDS
Standard (or conventional) EVB with ladder
and cords.
Functions: Up/Down/Slat orientation
T Y PE 1
T Y PE 2
T Y PE 3
Type 1
EVB with chain or belt apron drive
mechanism. Optimum shading
(slats without holes).
→ Level 1 security - slats cannot be lied
by hand.
Functions: Up/Down/Slat orientation
T Y PE 1
T Y PE 2
T Y PE 3
Type 2
EVB with slat drive and orientation
mechanism fully built into guide rails.
→ Attractive + protects against forced
entry
Functions: Up/Down with slats open/
Slat orientation
T Y PE 1
T Y PE 2
T Y PE 3
Type 3

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2. THE DRIVE AND ITS THREE NEW FUNCTIONS
2.1. OBSTACLE DETECTION & STRESS RELIEF
When the EVB meets an obstacle on the way up, the J4 WT Protect
drive immediately stops and reverses to relieve the stress on the EVB
components. The slats tilt in the opposite direction so that the obstacle
can be released. This function, which helps to extend the life of the EVB,
is activated by default.
2.2. FROST DETECTION & STRESS RELIEF
If the EVB is prevented from rising due to frost, the J4 WT Protect
drive stops immediately and reverses slightly to relieve the stress. This
function, which helps to extend the life of the EVB, is activated by default.
2.3. AUTOMATIC UPPER END LIMIT ADJUSTMENT
For reduced maintenance, the J4 WT Protect drive automatically adjusts
its upper position on the first operating cycle, aer 5 cycles, 10 cycles
and then every 50 cycles. This function is not activated by default. It can
be enabled either through an on-site adjustment operation or using the
EMS2 setting tool.
If a building controller is used, aer an obstacle has been
detected, the blind must be placed in the lower end limit
position to resynchronise the drive with the controller.
All of these functions can be deactivated and reactivated
(see section 4.Installation in an EVB).
Obstacle detection only takes place when the EVB is rising.
When the drive is first installed or reset, a complete cycle (round
trip of the application) must be performed to optimise the
function.

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3. TECHNICAL DETAILS
3.1. DRIVE COMPONENTS
2
1Sha adaptors
2Sha/Rotor
3Stator
4Brake
5Gearbox
6Mushroom
7Limit switch casing
8Power connector
1
5 643 7
8